Article
  • Conservation Study of Stones by Using Acrylic Monomer
  • Kang SY, Suh MC, Kim UY, Kim HJ
  • 아크릴계 단량체를 이용한 석조물의 보존처리 연구
  • 강상용, 서만철, 김은영, 김형중
Abstract
About 17% of historical properties in Korea were made of stones and most of them are exposed to weathering, as such that discoloring, cracking, and shattering occur from physical, chemical, mechanical, and biological effects due to outdoor placement. Proper treatments for conservation are necessary to prevent the weathering damage and to retain the original shape of stones. MMA, an acrylic monomer having low viscosity can be impregnated deep inside stones by consecutive compression and decompression process in a pressurized vessel. After the polymerization of MMA impregnate, the space inside of the stone was filled with PMMA. It is expected that water repellent and weather resistant properties will be improved because of the improved bonding of constituent materials in stones. In this study, moisture absorption, chemical resistance, and mechanical property of two domestic granites were examined after treating them with MMA for the purpose of determining the conservation value of this method that was possibly useful to the conservation of stone cultural assets.

우리나라 전체 문화재중 약 17%에 해당하는 석조문화재는 대부분 옥외에 있고 시간이 지남에 따라 물리적, 화학적, 기계적, 생물학적인 풍화가 진행되고 있어 표면의 색변화, 균열, 부서짐 등이 발생하게 된다. 이러한 풍화현상을 저지하고 지속적인 형태 유지를 위해 적절한 보존처리가 요구된다. 가압과 감압이 가능한 가압용기를 이용하여 저점도의 아크릴계 단량체인 MMA를 암석에 함침시키고 중합하면 암석의 내부 깊숙이 고분자물질을 충진시킬 수 있다. 그에 따라 암석 구성 물질간의 치밀한 결합이 유지되고 발수성 및 내후성 향상이 기대된다. 본 연구 에서는 국내산 화강암 2종을 이용하여 처리 후 수분흡수성, 내화학성, 기계적 성질 등의 변화를 통해 석조문화재에 대한 보존처리 방법으로써의 가능성을 확인하였다.

Keywords: conservation; impregnation; acrylic monomer; stones; cultural properties

References
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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2008; 32(3): 213-218

    Published online May 25, 2008

  • Received on Dec 12, 2007
  • Accepted on Mar 5, 2008